soil of Date palm
30 ng of the extracted DNA samples were used as templates to amplify the V4 region of the 18S SSU rRNA gene using the TAReuk454FWD1 (5-CCAGCASCYGCGGTAATTCC-3) and TAReukREV3 (5-ACTTTCGTTCTTGATYRA-3) oligonucleotides in subsequent polymerase chain reaction (PCR) amplification.